Final answer:
To solve the equation m_2 = 20 + 7x 2.52°, isolate x by subtracting 20 from both sides, dividing both sides by 7, and evaluating the resulting expression. The value of x is equal to 1. Therefore, the correct answer is A) -10
Step-by-step explanation:
To solve the equation m_2 = 20 + 7x 2.52°, we want to isolate x. The first step is to subtract 20 from both sides of the equation, giving us m_2 - 20 = 7x 2.52°. Next, we divide both sides by 7 to solve for x. The equation becomes (m_2 - 20) / 7 = 2.52°. Finally, we solve for x by evaluating the expression (m_2 - 20) / 7.
By substituting the given value of m_2 into the expression, we have (20 + 7x 2.52° - 20) / 7 = 2.52°. Simplifying further, we get (7x 2.52°) / 7 = 2.52°. Canceling out the 7s, we are left with 2.52° = 2.52°. This indicates that the value of x is equal to 1.
Therefore, the correct answer is A) -10